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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 18 of 18 for “"spring barley"”.
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Genetic diversity of the HvFT1 flowering gene in Nordic spring barley (Hordeum vulgare L.)
… important role in flowering time regulation in barley (Hordeum vulgare L.). It functions as a central integrator for signals of the vernalization, photoperiod and circadian clock pathways and promotes flowering. This is of interest for barley breeders on Iceland, who aim to produce early …
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Developing a temperature-dependent simulation model for Sitobion avenae: Impacts of climate change for spring barley in Ireland
… found to differ spatially, with current areas of spring barley cultivation experiencing some of the most significant alterations to S. avenae’s dynamics over time. These findings highlight potential increases in pest risk under climate change in Ireland, emphasising the need for monitoring …
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The Effect of Split Nitrogen Fertilization on Yield, Quality, and Nitrogen Use Efficiency of Spring Barley Grown on Two Different Soil Types in Iceland
… Iceland, using two different soil types and two spring barley varieties, Smyrill (six-row) and Kría (two-row), to study the effects of different N split applications on growth, grain yield, grain protein content (GPC), and NUE. Treatments included single fertilization at sowing, early booting, …
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Earliness factors in Nordic spring barley (Hordeum vulgare L.) Detection of QTL for growth and development traits in a Golf x Tampar barley mapping population
Barley (Hordeum vulgare L.) is the fourth most grown cereal crop in the world and can be successfully grown in a broad range of environments. Success of cultivation in subarctic regions such as Iceland depends largely on the ability of breeders to create high yielding cultivars that are adapted to …
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Physiological and Morphological Responses to Drought Stress in Different Cultivation Environments in Wild Type and ABA-deficient Barley
… container, and raised bed - on Hordeum vulgare (spring barley) growth and physiology to assess the translatability of the same applied drought treatment. Additionally, as plants in the field often experience multiple stresses simultaneously, I investigate the interaction between drought stress in …
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Maximising the benefits of cover crops through optimising the use of rotations, nitrogen fertiliser and organic manures
… cover crops in arable rotations can improve spring barley yields whilst facilitating lower nitrogen inputs. Under controlled conditions, they provided both yield and nutrient cycling benefits. However, under field conditions such yield benefits did not materialise. Cover crops were found to …
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Nitrification inhibitors have minimal impact on microbial and Collembola communities in Danish arable soil
… collembola communities in arable soils under a spring barley cultivation system. By assessing soils where inhibitors were repeatedly applied alongside fertilizers, we evaluated the short-term effects of NI use on soil biodiversity and function composition using a combination of microscopic …
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The Transfer and Fate of Cadmium and Zinc from Sewage Sludge Amended Agricultural Soil in an Arthropod Food Chain
… they consumed.Differences between winter and spring wheat were found to have a larger influence on the transfer of Cd and Zn in the systemthan differences between winter wheat and spring barley. It was also shown that the rose grain aphid (Metopolophium dirhodum) accumulateshigher …
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Identification of genes involved in (1,3;1,4)-β-glucan synthesis in barley (<i>Hordeum vulgare</i>)
An important component of primary cell walls in barley (Hordeum vulgare) is (1,3;1,4)-β-glucan, a polymer that has proven health benefits in the human diet, but that is undesirable for the brewing and distilling industry as it influences grain processability. Up to now, the main gene identified as …
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Genomic selection for accelerated barley breeding
… with the increasing demand for new and improved barley varieties, commercial interest in novel breeding techniques which improve efficiency is high. With a growing population and a range of evolving demands placed on crop production by a more variable climate, breeders need new methods to breed …
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Genetic Characterization and Linkage Mapping of Barley Net Blotch Resistance Genes
… is one of the most devastating diseases of barley (<i>Hordeum vulgare</i> L.) and occurs in two distinct forms, net-type net blotch (NTNB) and spot-type net blotch (STNB), caused by the fungal pathogens <i>Pyrenophora teres</i> f. sp. <i>teres</i> Smedeg. and <i>P</i>. <i>teres</i> f. sp. …
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Using a barley Nested Association Mapping (NAM) Population to mine wild barley germplasm for crop improvement
Modern cultivar barley, like other cultivated cereals, went through the so called “domestication syndrome”, by which early farmers subjected the crop to a consistent selection that led to gradual changes in its characteristics and architecture. The result is that the modern cultivar differs from …
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Identifying candidate genes/loci influencing barley secondary cell wall properties
… in this project found regions across the barley genome that are associated with differences in saccharification from straw of a population of elite two-row spring barley cultivars. They were identified through genome wide association studies (GWAS) carried out for saccharification from …
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Evaluation of Barley (Hordeum vulgare L.) Stem and Root Traits that Influence Lodging
Barley (Hordeum vulgare L.) lodging is a detrimental phenomenon that occurs globally and causes several hundred million dollars in financial losses annually to the industry due to reduced yield, downgraded quality, and increased disease load. While lodging can be managed through agronomic …
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Understanding seed-soil adhesion by myxospermous seeds and their biophysical function in agroecosystems
… and deep plough) and crop type (winter and spring barley) treatments shaped the presence, composition and abundance of functional groups. These results are biologically meaningful as the presence of functional groups (e.g. containing myxospermous species) within fields can alter local soil …
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Applying effectoromics and genomics to identify resistance against <i>Rhynchosporium commune</i> in barley
… one of the most destructive fungal pathogens of barley worldwide. It causes scald, responsible for reduced grain quality and yield losses of up to 40%. This project aimed to identify genetic resistance in barley using two different approaches: an effector approach through the identification of …
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Use of stable isotopes to assess phytoremediation of soils contaminated with cadmium and zinc.
… (T. caerulescens), dandelion (T. officinale) and spring barley (H. vulgare). The available pool of Cd and Zn for plant uptake was determined to be the same for the 3 different plant species examined although plant species had markedly different abilities to uptake metals. In addition to using the …